Article 37

Regulation (EC) No 45/2001 of the European Parliament and of the Council of 18 December 2000 on the protection of individuals with regard to the processing of personal data by the Community institutions and bodies and on the free movement of such data · European Union

Traffic and billing data 1. Without prejudice to the provisions of paragraphs 2, 3 and 4, traffic data relating to users which are processed and stored to establish calls and other connections over the telecommunications network shall be erased or made anonymous upon termination of the call or other connection. 2. If necessary, traffic data as indicated in a list agreed by the European Data Protection Supervisor may be processed for the purpose of telecommunications budget and traffic management, including the verification of authorised use of the telecommunications systems. These data shall be erased or made anonymous as soon as possible and no later than six months after collection, unless they need to be kept for a longer period to establish, exercise or defend a right in a legal claim pending before a court. 3. Processing of traffic and billing data shall only be carried out by persons handling billing, traffic or budget management. 4. Users of the telecommunication networks shall have the right to receive non-itemised bills or other records of calls made.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-27 · Text as adopted (Official Journal); later amendments are not incorporated in this text.